― A list of some mean-looking, but beautiful owls. ∙ There are more than 200 known species of Strigiformes (Owls). They are solitary and nocturnal birds of prey. They are found in all continents except Antarctica hunting small mammals, birds and insects. They may look mean but if you analyze closely each species body anatomy you will be surprised to find out that owls are indeed beautiful birds. Below is a compilation of popular owl species that are mean-looking but at the same time [...].